I really wonder if there is some place where you can communicate without fear for your safety?
Have you tried
Mastodon yet? Well i suppose that's more micro blogging (ie. Twitter) replacement than Facebook. For something like Facebook there are
Diaspora and
Friendica among a few others.
Of course the problem has always been to tell your friends and acquaintances to switch... Resistance to change is always strong.
Did you know that there are also secure instant messengers and chats?
But why stop there?, Is your
operating system secure?